摘要
使用coulmb3程序研究在墨西哥地区板块间俯冲带巨震对后续余震的静态库仑应力触发作用。2017年9月8日墨西哥M_(W)8.2地震后,在主震震中所在区域选取38个M_(W)>4.0地震作为研究对象,分别设定有效摩擦系数μ′为0.2、0.4、0.6时,触发比例为39.47%、31.58%和28.95%,触发效果不佳,随着有效摩擦系数μ′取值的增大,墨西哥M_(W)8.2地震对余震的触发比例在降低但对主要余震的触发效果在加强。
Coulmb3 program was used to study the static Coulomb stress triggering effect of strong earthquakes on subsequent aftershocks in inter-plate subduction zone in Mexico.After the M_(W)8.2 earthquake in Mexico on September 8,2017,38 M_(W)>4.0 earthquakes were selected as research objects in the area where the main shock epicenter was located.When the effective friction coefficients were set to 0.2,0.4,and 0.6,the triggering ratios were 39.47%,31.58%,and 28.95%,with poor triggering effects.As the value of the effective friction coefficient increased,the triggering ratio of M_(W)8.2 earthquake in Mexico to aftershocks decreased,but the triggering effect on the main aftershocks increased.
作者
卓瑞祺
张苏祥
王斌
关冬晓
朱翔国
张家声
ZHUO Rui-qi;ZHANG Su-xiang;WANG Bin;GUAN Dong-xiao;ZHU Xiang-guo;ZHANG Jia-sheng(Earthquake Agency of Xinjiang Uygur Autonomous Region,Urumqi 830011,Xinjiang,China;School of Geophysics and Measurement-control Technology,East China University of Technology,Nanchang 330013,Jiangxi,China;Institute of Geophysical and Geochemical Exploration,Chinese Academy of Geological Sciences,Langfang 065000,Hebei,China)
出处
《内陆地震》
2023年第2期164-171,共8页
Inland Earthquake
基金
新疆自然科学基金(2020D01A85)
震情跟踪定向工作任务(2022020505).
